Julius sternfeld



No. 607,291. Patented lly l2, |898. l. STERNFELD.

MACHINE FR MAKING STENCILS.

(Application filed Oct. 26, 1397.)

(No Model.)

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UNITED STATES IULIUS STERNFELD,

PATENT @Erica OF NE'V YORK, N. Y.

MACHINE FOR MAKING STENILS.

SPECIFICATION forming part of Letters PatentNO. 607,291, dated July 12,1898. Application filed October 26, 1897. Serial No. 656,447. (Nomodel.)

T0 all whom, it may concern:

Be it known that I, JULIUs STERNFELD, of New York city, in the countyand State of New York, have invented a newand Improved Machine for Making Stencils, of which the following is a full, clear, and exactdescription.

The invention relates to paper stencils used for marking outlines ofmonograms and the like on linen or other fabrics, the stencils beingformed by punctures produced by a needle or like instrument.

The object of the invention is to provide a new and improved machine foraccurately puncturing the paper and forming the desired stencil, themachine being arranged to permit the operator to form any desired numberof stencils at the same time. y

Theinvention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure l is a perspective view of the improvement. Fig. 2 is an enlargedsectional side elevation of part of the improvement, and Fig. 3 is atransverse section of the same on the line 3 3 of Fig. 2.

A long and very fine needle A is secured in a chuck B, attached to thelower end of a rod O, iitted to slide near its lower end in a bearingD', formed .in a tube D, and at its upper end the said rod is fitted toslide in a bearing E', attached to a casing E, supporting the said tubeD, as is plainly shown in Fig. 2. The casing E is provided with aremovable shell E3 and is attached to the lower end of a rod F, formedat its upper end with a fork F', pivotally connected with the outerforked end G of a counterbalancing-arm G, fulcrumed in a bearing I,depending from a bracket J, and mounted to turn therein to bring the armGr and the parts supported thereby to the desired position. The bracket.I is attached to a wall or other suitable support to bring the needle Aover a suitable 'table adapted to contain the paper to be formed intostencils by puncturing the paper, as hereinafter more fully described.

The tube D is provided on one side with a linger-piece D2, adapted to betaken hold of by the operator, preferably with the thumb and forefinger,so as to guide the point of the needle A overthe paper to be formed intoa stencil according to the lines of the design drawn on the said paper.

Now in order to allow of perforating or puncturing a desired number ofsheets of paper placed one on the top of the other to form a number ofstencils of the same pattern at the same time I provide an adjustingdevice consisting of a screw-rod K, screwing in 'nuts formed in theshank of the finger-piece D2 and in a lug D3, likewise attached to thetube D, the said screwerod being provided' at its lower end with afoot-piece K', adapted to rest on the upper surface of the top sheet ofthe pile of paper to be formed into stencils.

A.On the screw-rod K, between the two nuts, is secured a knurled orroughened collar K2 for allowing the operator to con venientl'yturn thescrew-rod, so as to adjust the same up or downto bring the foot K intoproper position, according to the number of sheets of paper to beperforated at one time.

The needle A, with its chuck B and rod O, receives a reciprocating'motion, and for this purpose I connect the upper end of the rod C withthe eccentric-rod L of an eccentric L, secured on a shaft N, having itsreduced ends N journaled in screws O, screwin in the sides of the casingE, as is plainly indicated in Fig.` 2. 'y

On the shaft N,'inside of the casing E, is secured a cone-pulley P, overwhich passes a cord or belt' Q, extending upwardly through openings E2in the top of the casing E to pass over pulleys R, journaled on thepivot connecting the forks F and G with each other. The runs of the cordorv belt Q then extend transversely over pulleys S, journaled on thepivot for the arm G in the bearing I, and the runs then extenddownwardly to pass over ti ghteningpulleys T, and finally over a drivenWheel U, mounted to turn on a stud projecting from a standard V, restingon the iioor or other suitable foundation. The WheelU is connected by alink W with a treadle under the control of the operatorv for imparting arotary motion to the wheel U to set the belt or cord Q in motion torotate the pulley I and the shaft N, so that the eccentric L im- IOOparts a reciprocating motion to the rod C, the chuck B, and the needleA.

Now it is evident that the stroke of the needle A is uniform, and whenit is desired to pcrforate a pile of sheets of paper less in height thanthe said stroke then it is necessary to move the foot K fartherdownward, so as to prevent the point of the needle from passing into thesupport for the paper, and if but one or a few sheets of paper are to beperforated the said foot is moved still farther down, so that the needlein its descent only passes through the said sheets and not down into thesupport for the paper.

It is evident that by the arrangement described the operator, havingmade the proper adjustment of the foot K according to the height of thepile of paper under treatment, simply takes hold of the finger-piece D2to move the tube D and casing Ewith their contents, so as to bring theneedle A over the outlines of the desired design, the rapid strokes ofthe needle puncturng the paper as the needle passes over the same infollowing the contour or outline of the design.

As the arm G is suiiciently weighted at its rear end to properlycounterbalance the parts suspended from the forward end of the said arm,it is evident that the operator can accurately move the point of theneedle A along the design on the top of the sheets of paper to producethe desired result with the greatest accuracy.

As the shaft N is run at a very high rate of speed, it is desirable thatthe bearings for the shaft may be readily reached for lubrication,repairs, and the like, it being understood that the constructiondescribed for this purpose fully allows the operator the desired access,as the screws O can be readily removed from the casing E wheneverdesired.

Having thus fully described my invention, I claim as new and desire tosecure by Let-ters Patent l. A machine of the class described,coinprisin g a depending bearing mounted to turn, a coun terbalanced armpivoted in said bearing and having a forked outer end, pulleys on thcpivot of the arm and bearing, a rod having a forked upper end andpivoted to the forked end of the arm, pulleys on the pivot of the armand rod, a casing carried by the rod and having a tube projectingdownwardly therefrom, a pulley mounted in the casing, a driven pulley,an endless belt passing over said pulleys, and a needle-carrying rodoperated by an eccentric from the shaft of the pulley in the casing,substantially as described.

2. A machine of the class described, comprising a depending bearingmounted to turn, a counterbalanced arm pivoted in the bearing, a casingprovided with a rod projecting from its upper face and pivoted to thearm, and with a tube projecting from its lower face, a cone-pulleymounted in the casing, an eccentric on the shaft of the pulley, aneedlecarrying rod connected with the said eccentric and projecting outthrough the tube, pulleys on the counterbalanced arm, a driven pulleymounted in a support below the counterbalanced arm, an endless beltpassing around said pulleys and tightening-pulleys carried by thesupport of the driven pulley, substantially as described.

3. A machine of the class described, comprising a pendent bearingmounted to turn, a counterbalancing-arm pivoted in the said bearing, arod pivotally connected with the outer end of the said arm, a casingcarried by the said rod and provided with a downwardly-projecting tube,a shaft journaled in the said casing and tube and receiving a rotarymotion from a traveling belt passing over pulleys supported on the saidarm, a rod fitted to slide in the said casing, and receiving itsreciprocating motion from the said shaft by an eccentric, and anadjustable foot-piece carried by the said tube, and adapted to rest onthe paper, to regulate the depth the needle is to pass into the paper,the needle being supported by the said rod, substantially as shown anddescribed.

JULIUS STERNFELD.

Witnesses:

Evenmin BoL'roN MARSHALL, F. W. IIANAFORD.

